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10125857087 = 29339345133
BaseRepresentation
bin10010110111000110…
…00101000100111111
3222010200120211120222
421123203011010333
5131214204411322
64352440131555
7505633236143
oct113343050477
928120524528
1010125857087
114326867335
121b67166bbb
13c54ab5318
146c0b65223
153e3e6de42
hex25b8c513f

10125857087 has 4 divisors (see below), whose sum is σ = 10126231560. Its totient is φ = 10125482616.

The previous prime is 10125857047. The next prime is 10125857099. The reversal of 10125857087 is 78075852101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10125857087 - 28 = 10125856831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10125857047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143228 + ... + 201905.

It is an arithmetic number, because the mean of its divisors is an integer number (2531557890).

Almost surely, 210125857087 is an apocalyptic number.

10125857087 is a deficient number, since it is larger than the sum of its proper divisors (374473).

10125857087 is an equidigital number, since it uses as much as digits as its factorization.

10125857087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374472.

The product of its (nonzero) digits is 156800, while the sum is 44.

The spelling of 10125857087 in words is "ten billion, one hundred twenty-five million, eight hundred fifty-seven thousand, eighty-seven".

Divisors: 1 29339 345133 10125857087